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Year 2010 - Volume 30, Number 10
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Lysosomal storage disease caused by Sida carpinifolia in cattle in Rio Grande do Sul, 30(10):833-838
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ABSTRACT.- Pedroso P.M.O., Oliveira L.G.S., Cruz C.E.F., Soares M.P., Barreto L.R.B. & Driemeier D. 2010. [Lysosomal storage disease caused by Sida carpinifolia in cattle in Rio Grande do Sul.] Doença do armazenamento lisossomal induzida pelo consumo de Sida carpinifolia em bovinos do Rio Grande do Sul. Pesquisa Veterinária Brasileira 30(10):833-838. Setor de Patologia Veterinária, Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9090, Porto Alegre, RS 91540-000, Brazil. E-mail: davetpat@ufrgs.br
This paper reports the natural poisoning by Sida carpinifolia (guanxuma, chá-da-índia) in cattle in Rio Grande do Sul, Brazil. Five cattle were affected in the period 2001-2008. Clinical signs included weight loss, incoordination, walking difficulty, generalized tremors, frequent falls, and death. Microscopically, the main changes were vacuolation of Purkinje neurons in the cerebellum, pancreatic acinar cells, and thyroid follicular cells. Transmission electron microscopy revealed vacuoles bordered by membrane containing finely granular material. Lectin histochemistry showed positive staining in neurons with the lectins Concanavalia ensiformis (Con-A), Triticum vulgaris (WGA), and Succinyl Triticum vulgaris (sWGA). |
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